Ventilating system.



J. B. STRAUSS.

VENTILATENG SYSTEM.

APPLICATION FILED JAN.22, I912.

Patented Nov. 16, 1915.

4 W? M HUI!- COLUMBIA PLANOGIIAPH co wAsnma'ioN, D. c.

JOSEPH B. STRAUSS, OF CHICAGO, ILLINOIS.

VENTILATING SYSTEM.

Specification of Letters Patent.

Patented Nov. 16, 1915.

Application filed January 22, 1e 12. serial No. 672,574.

To all whom it may concern.

Be it known that I, Josnrrr B. STRAUss, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Ventilating Systems, of which the following is a specificatiom This invention relates to ventilating sys tems and has for its object to provide a new and improved system of this description.

The invention is particularly adapted to be used in connection with subways, tunnels, or the like, through which cars carrying passengers travel. It is wellknown that in such subways it is difiicult to secure any proper ventilation or change of air due to the existing conditions. This difficulty is obviated by my present invention.

Referring now to the accompanying drawings, I have shown one construction embodying the invention as used in connection with a subway for car.

Figure 1 is a longitudinal sectional view through the subway along the line of the ventilating system. Fig. 2 is a cross sectional view of a portion of said subway.

Like numerals refer to like parts throughout the several figures.

As illustrated in the drawings, there is provided at the top of the subway or other underground passage, an air duct 1 which extends therealong throughout the portion thereof to be ventilated. This air duct 1 communicates at intervals with suitable exhaust ducts 2, there being provided suitable exhaust valves 3 arranged to permit the air to escape but prevent its return. Near each exhaust duct is an obstruction part 4 which confines the air in the duct and directs it through the exhaust duct. Associated with the car 5 is a suitable air scoop 6 which is inserted into the air duct, 1 and which fits therein so as to move the air in the duct along ahead ofit as the car is moved along and to cause such air to be discharged through the exhaust ducts 2. In the construction shown in the drawings, the air scoop 6 is pivotally connected to the car at 7, and is provided with some suitable means such as the counterweight 8 for normally holding it up in its operative position as shown in Fig. 1. The top of the car is provided with a receptacle 9 for receiving the air scoop when it passes the obstruction 4;. The air scoop 6 is preferably provided with an actuating part 11 located near the pivot the bottom of the air duct as shown. When the actuating part 11 reaches the front end of the part 4, its height is such that it passes under the part 4 and compresses the air between the front and rear ends of the part 4:, the pressure thus developed moving the scoop about its pivotal point 7 so as to move it into the receptacle 9 and permit it to pass the obstruction 4. It will thus be seen that there is provided an air cushioned actuating device for moving the air scoop so that it passes the obstructions without injury. If for any reason the air pressure is not sufficient to move the air scoop the curved face 4: acting on the part 11 will secure this movement. The duct 1 is preferably partiallyor wholly open at one side, such as the bottom side, for example, and the car when underneath the duct closes this opening so that the air will be confined by the scoop and moved forward so as to be discharged through the exhaust duct. The vehicle is preferably provided at suitable intervals with sealingparts 12 which are connected with the arms 18 pivoted at 1& to the vehicle.

parts 12 are in their closed position as shown in Fig. 2 so as to close the space between the .loweredges of the side of the air duct and the top of the vehicle.

can be moved out of the way by moving the When desired they arms 13 about their pivotal connections. These sealing parts are preferably elastically held in their operative positions as by means of thesprings 15 so that they will readily and automatically adapt themselves to any tervals, preferably at the bottom of the subway and are connected with some source of fresh air supply.

The use and operation of my invention are as follows: When. the cars are traveling along the subway, the air scoops thereof are NVhen the vehicle is in use, these sealing sion air ducts 10. The obstruction 4 and ex- 7 haust ducts 2 are located at suitable intervals so that a quantity of bad air in the subway is discharged through each duct each time the car passes it. WVhen the air scoop 6 reaches the obstruction, the actuating part 11 passes beneath the obstruction a and is moved by the air compressed in front of it or by the obstruction i and causes the air scoop to be moved down into the receptacle 9 so'as to pass said obstruction 4:. After the air scoop passes the obstruction, the counterweight automatically moves the scoop back into the air duct so as to cause it to force I the air out through the next exhaust duct.

It will thus beseen that by properly proportionating the ducts and the exhaust duets with relation to the number of carspassing through the subway'and the size of the subway, such subway may be properly ventilated'with little expense and by the movement of the cars themselves.

In the specifications and claims, I have used the term air but I do not wish this to be limited to atmospheric air but use it to include smoke and gases of any kind that it may be desirable to remove. Each vehicle may be provided with two air scoops, one at each end thereof so that the vehicle can be used to force the air out of the exhaust ducts when traveling in either direction, the air scoops being provided with means for holding them at will and in operative position so that either one of them can be used as desired.

I claim:

1. A ventilating system for tubes through which vehicles pass comprising a duct provided at suitable intervals with exhaust ducts, a scoop mounted upon the moving vehicle and projecting into said duct and adapted when moved along the duct to discharge air through the exhaust ducts;

2 A ventilating system for tubes through which vehicles pass comprising an air duct extending therealong and provided at intervals with exhaust ducts, obstructing devices for said air duct associated with said exhaust ducts, and means on the vehicle for confining the air in the air duct as the scoop passes therealong and cause it to be forced through theexhaust ducts.

' 3. A ventilating system for tubes through 1y open air duct near the roof thereof, said duct pro vided at intervals with exhaust ducts, means associated with thecar for confining the air in said duct and forcing it out ofsaid ex- 'haust ducts as the car moves through the subway and air admission ducts for admitting fresh air into the subway.

4. A ventilating system comprising two cooperating devices, one a fixed device comprising a duct, obstructions thereacross at intervals with exhaust ducts connected with said duct near said obstructions and the other amovable device which travels along said duct, a part thereof projecting into the duct so as to force the air therealong and discharge it through the exhaust ducts.

5. A ventilating system comprising an open air duct, obstruction thereacross at intervals, exhaust ducts near said obstructions, a movable part adapted to move along said air duct and to close the same for a portion of its length and means connected with said movable part for forcing the air along said air duct and out through said exhaust ducts.

6. A. ventilating system comprising an open duct, obstruction thereacross at intervals, exhaust ducts near said obstructions, a traveling part adapted to more along said duct and to close the same for a portion of its length, a scoop movably connected with said taveling part and projecting into said duct and adapted to move the air along said duct and out through said exhaust ducts, and an actuating device for moving the scoop to clear the obstructions.

7. A ventilating system comprising two cooperating parts, one part a fixed device comprising a duct having partitions at intervals, dividing the duct into sections, each section provided with an outlet, and the other part a movable device traveling along said duct so as to clear each section of its contents as the movable device travels.

8. A Ventilating system comprising two cooperating parts, one part a fixed device comprising a duct, the other part an air moving device traveling along said duct and means associated with the parts for sealing the contact between them, said means comprising separated sealing parts bearing on the sides of the duct.

9. A ventilating system comprising an open duct, partitions dividing it intosections, a part adapted to travel along said duct, said part projecting into said duct and means by which said part and the partition automatically clear each other during movement.

10. A ventilating system comprising an open duct, obstructions thereacross at intervals so as to divide it into sections, exhaust ducts near said obstructions, a traveling vehicle adapted to move along said duct, a scoop mounted on said vehicle and projecting into said duct, sealing devices associated with the vehicle and engaging the duct so as to close the sections as the vehicle travels and an automatic device whereby the scoop clears the obstructions as the vehicle travels.

11. A ventilating system comprising an open duct, obstructions thereacross at intervals, exhaust ducts near said obstructions, a traveling part adapted to move along said duct and to close the same for a portion of its length, a scoop pivotally mounted on said traveling part and projecting into the duct and an actuating device for rotating the scoop to clear the obstructions, said actuating device comprising an actuating part connected With the scoop.

12. A ventilating system comprising an open duct, obstructions thereacross at intervals, exhaust ducts near said obstruction, atraveling part adapted to move along said duct and'to close the same for a portion of its length,'a scoop pivotally mounted on said traveling part and projecting into the duct and an air cushion actuating device for automatically moving the scoop to clear the obstructions.

13. A ventilating system comprising an open duct, obstructions thereacross at inter vals, exhaust ducts near said obstruction, a traveling part adapted to move along said duct and to close the same for a portion of its length, a scoop pivotally mounted on said traveling part and projecting into the duct and an air actuated device for automatically moving the scoop to clear the obstructions, said scoop countervveighted so as to automatically return to its normal position in the duct.

14. A ventilating system comprising an open dugt, obstructions thereacross at intervals, exhaust ducts near said obstructions, a traveling part adapted to move along said duct and to close the same for a portion of its length, a plurality of scoops movably mounted on said traveling part so as to operate in either direction and means whereby some may be rendered inoperative While the others are in service.

15. A car comprising a hoodless top, a part projecting from the roof thereof, a fixed duct above said car roof and along which the car travels, said part projecting into said duct, devices projecting from the carand engaging the duct to seal it and means whereby the said part forces the air out of the duct as the car travels therealong.

16. A ventilating system for tubes through Which vehicles pass comprising a normally open air duct, said duct provided at intervals with exhaust ducts, a scoop mounted upon the moving vehicle and projecting into said duct so as to move the air therein, a

portion of said vehicle extending in prox imity to the open portion of said duct so as to substantially close a portion opposite the vehicle.

Signed at Chicago, this 11th day of January 1912.

JOSEPH B. STRAUSS. Witnesses:

MINNIE M. LINDENAU, GENEVA HIRTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

